"Don Johnstone" wrote in message
. com...

At 13:31 12 June 2009, jsbrake wrote:
But wouldn't putting winglets on the bird invalidate the Type
Certicate?

I've been toying with the idea of the double-panel spoiler
modification, but I've been told that my TC would be gone and I'd be
in the "owner maintenance" category. I'm not sure that that's a good
idea.

I can understand upgrading the brakes and canopy not interfering with
the TC, but wouldn't the winglets be a structural change, and thereby
invalidate the TC?

As an aside, my TC states that my Kestrel must be "all white", with
blue-grey (or similar light) registration marks. I understand that it
was written in the early days of FRP, but would it be allowable now to
put bright red anti-collision accents on the extremities?

There is an official double paddle mod for the airbrakes, it was held on
Gliderpilot.net for a long while. It is a very simple mod.

Mod is on the Kestrel Yahoo group.
The word is that all it does is change the noise.
Landing flap and good speed control is all that's needed.
( Unless you are out to impress, when the use of the tail chute looks
coooool )